IONs intelligently engineer site-to-site traffic up to which layer of the OSI?

The correct answer is D. 7. IONs (Intelligent Overlay Networks) operate up to Layer 7 (Application layer) because they can inspect and make routing decisions based on application-level data - such as application type, user identity, and content - not just IP addresses or ports. This deep visibility allows…

CloudGenix SD-WAN Deployment and Configuration

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How the community answered

(32 responses)

A
3% (1)
B
6% (2)
C
3% (1)
D
88% (28)

Explanation

IONs (Intelligent Overlay Networks) operate up to Layer 7 (Application layer) because they can inspect and make routing decisions based on application-level data - such as application type, user identity, and content - not just IP addresses or ports. This deep visibility allows them to intelligently steer site-to-site traffic based on business intent and application performance requirements.

Why the distractors are wrong:

A (Layer 3): Standard IP routing operates here, but that's basic and not "intelligent" - it has no application awareness.
B (Layer 4): TCP/UDP awareness enables some QoS and load balancing, but still lacks application context.
C (Layer 5): The Session layer is rarely the defining boundary for traffic engineering solutions and is not the ceiling for ION capabilities.

Memory tip: Think "7 = Smart" - any solution marketed as intelligent or application-aware for traffic engineering almost always reaches Layer 7, because that's where you can finally see what the traffic actually is, not just where it's going.

Topics

#ION devices#OSI model#Layer 7#application-layer steering

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